Before germination sowing, large potato species (small species do not need to be cut) are cut into 25-gram chunks, requiring that each potato has 1~3 buds, and then use 1 gram of "920" for a little The wine was dissolved, diluted with 10 kg of water, put in potato, soaked for 5 minutes, drained and drained. The wound was smeared with ash, and immediately sowed. For the morning market, the potato should pay attention to appropriate early sowing, and it is usually sown before and after late November. Sowing should pay attention to the election of soil moisture is not wet. After sowing, pay attention to waterproof and stain or dry weather to drench wet soil.
Narrow pot deep trenches covered with no-tillage cultivation of potatoes, especially pay attention to the narrow box deep trench. First, we must choose a good drainage paddy field or dry soil cultivation, in accordance with the width of 1.3 meters, compartment width 30 cm, depth 20 cm, and open the main ditch, Wei ditch, so that "three ditch" supporting, narrow box depth The ditch is conducive to drainage and anti-staining in case of rainy weather after sowing, and irrigation and drought relief in dry weather conditions. The car's surface is shaped like a turtle with a lower, middle high turtle shape. During drought, the water is poured into the depth of the ditch by 1/2 to 2/3, soaking the soil through infiltration to prevent submergence, flood irrigation, and long-term irrigation.
Plastic film-covered potato sown early, emerged early, and is vulnerable to frost weather hazards. The potato covered with mulching film not only has no fear of frost damage, but also can be listed before and after mid-March. Potatoes are sown before and after the end of November, and they are then arched with bamboo sheets on the surface of the car and covered with plastic film. At high temperatures, take care to remove anti-burning seedlings at both ends of the membrane, cover straw curtains on both sides of the membrane to protect the seedlings during strong cold or freezing weather, and remove the straw curtains after adverse weather.
Replanting basal fertilizer before sowing on the surface of the mu rot of 2000 to 2500 kilograms of decomposed pig cattle bark, then sowing potatoes, and then into the decomposed ash fertilizer, mu 45% potassium sulfate compound fertilizer 20 to 25 kg, evenly applied In the daytime, avoid touching the seed potatoes. After the fertilization, evenly cover the straw with 8 to 10 cm thickness. The straw should cover the entire surface of the car. Pay particular attention to the edge of the car where no empty or thin cover is left. After covering the grass, the plastic film covers the arch.
Pay attention to pest control and precautions. Use 10% of earthworm to control aphids, kill 2.8% of ladybirds with 2.5% enemy, use 25% metalaxyl or 70% of mancozeb to control late blight, use 5% of mycorrhizal bacteria Clearing virus disease.
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